Jennifer Lopez has done an 'Angelina' at this year's Grammy awards by wearing a risqué gown showing off her leg.

The singer wore a black dress slashed to the thigh on one leg, much like the outift Angelina Jolie wore to last year's Oscars.

Ironically, last week television channel CBS which broadcast the ceremony sent out a wardrobe advisory email to all those attending the event.

The stern missive read: “Please be sure that buttocks and female breasts are adequately covered. Thong type costumes are problematic. Please avoid exposing bare fleshy under curves of the buttocks and buttock crack. Bare sides or under curvature of the breasts is also problematic.”

“Please avoid sheer see-through clothing that could possibly expose female breast nipples. Please be sure the genital region is adequately covered so that there is no visible ‘puffy’ bare skin exposure. OBSCENITY OR PARTIALLY SEEN OBSCENITY ON WARDROBE IS UNACCEPTABLE FOR BROADCAST.”